Mutoh Valuejet 1604 Refillable Cartridge with smart card slot. It’s easy to put smart card with this mutoh cartridge. It’s much better than the mutoh cartridge with the smart card chip at rear with electric board. Our mutoh cartridge eliminate the poor electric board and wire to cause “not orignal ink” error. You will never has this “not orignal ink” error with Lavaink Mutoh refillable cartridge.